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Hidden History

Core Content Library: Social StudiesHistory books tell us facts about big events. Hidden History books share with readers the important roles various men and women played in our nation's history as spies -- hidden in plain sight.
Ages 8 to 12 Grades 2 to 5 Reading Level 3 32...Details

NEW! Spies in plain sight
History books teach us important facts about big events that made a difference in the world. But as time passes, we discover some of the interesting hidden mystery of history.
With this series, readers learn about men and...Details